CT Protocols: (Brain, ENT, Spine, Vascular) - Department of Radiology

More documents

Recommendations

Info

10 Revised 7/22/09 (Gentry/Ranallo) Head: Helical Scan with Angled Axial Reformations - Adult Scanner GE LS Xtra GE LS 16 GE LS 16 Pro GE LS VCT 64 GE LS 8 Scan Type Helical Helical Helical Helical Helical Rotation Time (sec) 0.6 0.9 0.5 0.5 1.0 Detector Coverage (mm) Beam Collimation (mm) 10 10 10 20 10 Detector Rows 16 16 16 16 8 Pitch 0.562 0.562 0.562 0.531 0.625 Speed (mm/rot) 5.625 5.625 5.625 10.62 6.25 Detector Configuration 16 x 0.625 16 x 0.625 16 x 0.625 64 x 0.625 8 x 1.25 Slice Thickness (mm) 1.25 1.25 1.25 1.25 1.25 Interval (mm) 0.65 0.65 0.65 0.65 0.65 Scan FOV Head Head Head Head Head kV 100 100 100 100 100 Smart mA/ Auto mA Range 240-750 130-420 230-750 210-700 130-420 Noise Index 6.6 6.6 6.6 6.6 6.6 (Manual mA) 630 330 600 570 340 Recon 1: DFOV 22 22 22 22 22 Recon Type Soft Soft Soft Soft Soft WW/ WL 90/30 90/30 90/30 90/30 90/30 Recon Option Plus Plus Plus Full Plus Recon Option Recon 2: IQ Enhance DFOV 22 22 22 22 22 Recon Type Bone Plus Bone Plus Bone Plus Bone Plus Bone Plus WW/ WL 3500/350 3500/350 3500/350 3500/350 3500/350 Recon Option Plus Plus Plus Full Plus Recon Option Contrast CT 1 CT 2 CT 3 CT 4 & ER CT East & RP CT IQ Enhance Slice Thickness (mm) 0.625 0.625 0.625 0.625 1.25 Interval (mm) 0.375 0.375 0.375 0.312 0.75
Adult Head: (Axial Mode) (Protocol # 1.3) 11 Revised 7/22/09 (Gentry/Ranallo) Billing: 1. CT Head without, or with, or without and with 2. Contrast if used Setup: 1. Supine, AP and lateral scouts 2. Helical mode should be used routinely `for adult head CT scans. Only use axial mode when you cannot move the patient’s head into proper position (trauma, cervical collar, rigid neck). This mode can also be used in unstable patients in the emergency department when the CT scan time must be expedited. 3. Patient Positioning: Using the lateral scout image, angle the gantry so that it is parallel to a line connecting the infraorbital rim with the opisthion (see below). 4. Start scans at the bottom of C1 and scan through the top of the head DFOV: Preferred 20 cm (Range 18-22) Contrast: 1. 150 ml of 240 mg/dl non-ionic contrast @ 0.6 ml/sec (4.2 minutes) 2. Begin scanning as soon as contrast injection is finished Other Info:
Page 1 and 2: Name / MRN: ___________________ / _
Page 3 and 4: Table of Contents (continued): 3 Re
Page 5 and 6: 5 Revised 7/22/09 (Gentry/Ranallo)
Page 9: 9 Revised 7/22/09 (Gentry/Ranallo)
Page 53 and 54: Sinuses (Diagnostic): (Adult and Pe
Page 61 and 62:
61 Revised 7/22/09 (Gentry/Ranallo)
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
101 Revised 7/22/09 (Gentry/Ranallo
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Vascular Imaging: Stroke Deluxe: (A
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Appendix # 2 129 Revised 7/22/09 (G
Page 131 and 132:
Page 133 and 134:
Suggestions for ROI Placement 133 R
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
1. CTA (High-res COW) 2. CTA (Strok
Page 141 and 142:
Page 143:
show all

CT Protocols: (Brain, ENT, Spine, Vascular) - Department of Radiology

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?